Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Aids
Always use Connector Test Adapter Kit (J 35616-A) or Flat Wire Probe Adapter Kit (J 42675) to front probe terminals. Do not use paper clips or other substitutes as they can damage terminals and cause incorrect measurements.
Do not operate AIR pump for more than 60 seconds. Continuous operation of AIR pump in excess of 60 seconds will damage AIR pump.
If the problem is intermittent, See INTERMITTENT CONDITIONS under SELF-DIAGNOSTIC SYSTEM.
An AIR pump that had become inoperative and had shown indications of having exhaust gases in the outlet port would indicate check valve failure.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.